Coal-elevator



(No Model.)

No. 374,895. Patented Deo. 13, .1887.

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UNITED STATES PATENT OFFICE. o

THOMAS G. GOODFELLOW, OF CHICAGO, ILLINOIS.

CoAL-ELEvA-Toe.

SPECIFICATION forming pan; of Letters Patent No. 374.895, dated December 13,1887.

Application filed March 31, 1387.

Serial No. 233,218. (No model.)

To all whom it may concern:

Beit known that I, THOMAS G. GooDEEL- LOW, a citizen of the United States, residing at Chicago, in the county -of Cook and State of Illinois7 have invented a certain new and useful Improvement in Coal-Elevators, which is fully` set forth in the following specification, reference being had to the accompanying drawings, in which- Figure l is a vertical sectional view of an apparatus embodying my invention 5 Fig. 2,

a plan section taken on the line l lof Fig. l;

Fig. 3, a detail sectional view taken on the line 2 2 of Fig. 1; Fig. 4, a detailsectional View taken on the line 3 3 of Fig. 3 and on an enlarged scale; Fig. 5, a detail view of a portion of the locking mechanism detached and on a still larger scale, and Fig. 6 a detail view illustrating the tripping projections.

Like letters refer to like parts in all the figures of the drawings.

My invention relates to elevators for domes tic use, it being designed more particularly for elevating coal, although its application is of course not limited to this particular use; and it has for its object to provide an elevator which may be loaded, hoisted to any predetermined point of its travel, and automatically unloaded to said point by a single attendant at the bottom of the elevator-shaft.

Io these ends my invention consists in certain novel features which I will now proceed to describe, and will then particularly point out in the claims.

Atrepresents the car or bucket, which may be operated by any suitable hoisting mechanism. That which I prefer for the purpose is that shown in the drawings, in which the car or bucket is mounted in a frame, B, moving in suitable ways,C, and having attached to it at top and bottom a sprocket-chain, D, which passes over a sprocket-wheel, E, at the top of the elevator-shaft and over a similar wheel, E', at the bottom of said shaft, said chain being also provided with a counterbalanceweight, d, to act as a counterpoise for the car or bucket A. On the shaft e-of the lower sprocket-wheel, E, is mounted a sprocketwheel, e', over which a sprocket chain, e2, passes to a sprocket-wheel, E2, of smaller diameter, the shaft of which is provided with a therewith in the usual manner, to prevent or i permit the descent of the car or bucket A.

Power applied to the crank-handle E will rotate the sprocketwheel on the shaft thereof, and, through the medium of the sprocketchain e?, impart a rotary motion to the sprocket-wheel c and its shaft e. The sprocket-wheel E on this shaft will then move the sprocketchain D, and consequently the car or bucket A,in the desired direction,either up or down. This mechanism is in common use and is not of my invention, and it therefore needs no extended description here, as any approved apparatus for the purpose may be substituted therefor, my present invention not relating to the hoisting apparatus. The ratchet F and pawl f are common in machines of this description and operate in thc usual manner.

The car or bucket A is provided with sides a and a forward and downward inclined bottom, a', being closed at the front by a door, a2, hinged at the top to swing outward, and bearing, when closed, against a rabbet, a, in the bottom a', said door and rabbet being preferably arranged some little distance back from the front of the car, so as to prevent the door from catching upon the side of the elevatorshaft when it swings ont. A space, A', is thus formed at the rear of the car to receive the load to be carried, the open front part, A2, of the car forming a discharge guide or spout for the same.

The top of the car A is covered by a suitabledeck or flooring, A3, the rear portion, a, of which is hinged, and may be raised to give access to the interior of the space A2 when the door a2 is closed.

G represents a dog or catch secured to the rear of the door a2 at the bottom thereof and extending rearward through a suitable slot or aperture in the rabbeted Wall a.3 of the bottom a or" the car A. This dog is provided with a suitably beveled and shouldered head, g, for

and mounted to slidelongitudinally in suitable bearings, h', on the rear of the part ai, being normally thrust outward in the direction of thetripping projections hereinafter described by means of a suitable spring. In the construction shown a spiral spring,H,isemployed, surrounding the body of the 1ockingbolt H and bearing against a collar, h2, thereon at one end, the other end of said spring abutting against one of the bearings h', as shown.

I represents a sleeve adj ustably mounted on the outer end of the bolt H, its adjustment being preferably obtained by forming in the said sleeve a slot, z', provided with lateral recesses 13', corresponding in number to the number of stations or floors to be served by the elevator and corresponding in location or distance from'each other to the size of the corresponding series of tripping projections. A pin, H2, on the locking-bolt H serves, iu conjunction with the slot 'i and recesses i', to lock the sleeve I on said bolt, and a spring, I', bearing against the collar h2 and against the inner end of the sleeve, serves to thrust the sleeve normally outward when not locked.

.I represents a tripping arm or lever pivoted to the car A and provided with a slot, j, by means of which it is connected to the sleeve I, the threaded end I2 of which passes through the said slot and receives a nut, it, on the outside. 'Ihe end J' of the tripping-arm is bent outward, so as to engage with the tripping projections. This tripping-arm may be dispensed with, and the sleeve I extended sufficiently to perform its functions; but I prefer to employ the construction shown.

K, K', and K2 represent a series of tripping projections mounted, preferably, on one of the ways C in the line of travel of the tripping-arm J. These tripping-arms are located each in proper relation to its corresponding floor or station L L', Src., so that when the c'ar is in position to discharge at said floor or station,either upon the floor itself or into a suitable receptacle, M, placed thereon, the tripping-lever is in such relative position to said tripping projection that its end J' is in line with the center or most prominent part of the same. The said series of projections increasein size in ascending, the lower one, K, being of such size that when the sleeve is adjusted to its outermost i position, with the pin H2 in the innermost recess i', the trippinglever will engage with the said projection. 'Ihe next projection, K', corresponds wit-h the next recess i', and so on in ascending, any desired number of stations or floors being served each with a projection more prominent than the one below and less prominent than the one above, and a corresponding series of recesses i' being of course employed in the sleeve I, so that when the sleeve is set to trip at a given floor or station the tripping-armwill clear all of the tripping projections below the one for which it is set, and will be operated by the said projection for which it is set.

'Ihe operation of my improved elevator will be readily understood from the preceding description, and is as follows: It being desired, for instance, to raise coal or the like from the basement to any given floor, the door a2 is closed, the space A' lled, and the hinged top ai closed, and the sleeve I set for the desired floor. By means ofpower applied to the crankhandle E2 the car A will be raised, the tripping-arm .I clearing all the tripping projections until it reaches the one for which it is set. The said projection will force the arm and sleeve inward, carrying the bolt H with it, until the projection 7L on said bolt is clear of the dog g, when the weight of the coal in the space A will swing open the door a2, andthe coal will be discharged at the proper point, being guided by means of the front portion, A2, to its place of deposit. The door a? will swing back and close automatically, the spring H' locking the same by engaging the projection h on the bolt H with the dog G, and the car may be lowered for another load for the same or another oor or station. In case the door c2 does not close, it will be protected from damage by catching on anything during the descent of the car, owing to its location within the, part A2 of the car. The top A3 of the car will serve to carry groceries, passengers, or the like, after the manner of an ordinary dumbwaiter o'r elevator, and when used for this purpose the elevatormay travel the entire length of its shaft regardless of the position in which the sleeve I is set, since the bolt will yield sufficiently to pass over any of the tripping pro j ections.

y Itis obvious that various'modications in the details of construction may be made without departing from'the principle of my invention,v and I therefore do not wish to be understood as limiting myself strictly to the precise details hereinbefore described, and shown in thedrawings.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is*

l.V In an elevator for coal, Sie., the car or bucket provided with an inclined bottom and closed at the front by a door hinged at its top to swing outward, in combination with a locking-bolt, an adjustable tripping device on said bolt, and a series of tripping projections of increasing size, one for each floor or station, to operate the tripping device, substantially as and for the purposes specified.

2. In anelevator for coal, Svc., the car or bucket provided with the inclined bottom a', having rabbet c3, and the door a2, hinged at its top to swing outward and restingnormally against said rabbet, the said door being arranged within the car back from its front edge, and forming, in conjunction with the body- Walls of the car, the rear space, A', and front space, A, substantially as and for the purposes specied.

3. In an elevator for coal, 82e., the car or IOC) IIO

bucket A, provided with side walls, a, inclined bottom a', and top or deck A3, having top door, a4, at the rear, in combination with the door a2, hinged at its top to swing outward Within the car or bucket, and forming, in conjunction with the other parts enumerated, the front space, A2, and rear space, A', substantially as and for the purposes specied.

4. In an elevator for coal, 85e., the car or bucket A, having door a2, provided with dog or catch G, the spring locking-bolt H, having lug h, the sleeve I, adjustable upon said .locking-bolt, and a series of tripping projections, K K K2, of increasing size, substantially as and for the purposes specified.

5. In an elevator for coal, Snc., the combination, with the car, its door, and the springv locking-bolt provided with pin H2, of thesleeve I, mounted on said bolt and having slot i, with lateral recesses i', and a series of tripping pro- 2o jections, K K K2, corresponding to the said lateral recesses, substantially-as and for the purposes specied.

6. In an elevator, the combination, with the car, its door, and the spring lockingbolt, of 25 the sleeve adjustable upon said bolt, the tripping-arm pivoted to the car and connected to the sleeve, and the series of tripping projections of increasing size arranged in the path of said trippingarm, substantially as and for 3o the purposes specified.

THOMAS G. GOCDFELLOV.

Vitnesses:

IRVINE MILLIER, XV. C. GoRLIEs. 

